#258BA3#258BA3

#258BA3 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.1% C 0.096 H 217.6°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#258BA3
RGB	rgb(37, 139, 163)
HSL	hsl(191, 63%, 39%)
HSV	hsv(191, 77%, 64%)
CMYK	cmyk(77.3%, 14.7%, 0%, 36.1%)
CIE-LAB	lab(53.49, -20.03, -20.89)
CIE-LCH	lch(53.49, 28.95, 226.20°)
OKLab	oklab(59.1% -0.0758 -0.0584)
OKLCH	oklch(59.1% 0.096 217.6)
XYZ	xyz(16.6036, 21.5009, 37.9182)
Luminance	0.2150 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258BA3 #A33D25

analogous

#25A37C #258BA3 #254CA3

triadic

#258BA3 #A3258B #8BA325

tetradic

#258BA3 #7C25A3 #A33D25 #4CA325

square

#258BA3 #7C25A3 #A33D25 #4CA325

split-complementary

#258BA3 #A3254C #A37C25

monochromatic

#0E363F #1A6071 #258BA3 #34B3D1 #66C6DC

Accessibility & contrast

On white

3.96

#258BA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#258BA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258BA3

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258BA3	#FFFFFF	#000000	##000000
##258BA3	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B87A4

Deuteranopia (green-blind)

#6A7AA3

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #258ba3;
/* rgb */ color: rgb(37, 139, 163);
/* oklch */ color: oklch(59.1% 0.096 217.6);

Tailwind

colors: {
  custom: {
    50: '#74adbe',
    500: '#258ba3',
    950: '#000000',
  },
}

SCSS

$custom: #258ba3;
$custom-light: #74adbe;
$custom-dark: #000000;

JSON

{
  "hex": "#258ba3",
  "rgb": {
    "r": 37,
    "g": 139,
    "b": 163
  },
  "hsl": {
    "h": 191.429,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59104,
    "c": 0.09564,
    "h": 217.6
  },
  "luminance": 0.21503
}

Semantic roles & 50–950 ramp

primary

#258BA3

secondary

#C27462

accent

#6142E6

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258BA3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →